4.8 Gbit/s 16-QAM-OFDM transmission based on compact 450-nm laser for underwater wireless optical communication
Journal
Optics Express
Journal Volume
23
Journal Issue
18
Pages
45519
Date Issued
2015
Author(s)
Hassan. M. Oubei
Jose R. Duran
Bilal Janjua
Huai-Yung Wang
Cheng-Ting Tsai
Yu-CheihChi
Tien-Khee Ng
Hao-Chung Kuo
Gong-Ru Lin
Jr-Hau He
Boon S. Ooi
林恭如
Abstract
We experimentally demonstrate an underwater wireless optical communications (UWOC) employing 450-nm TO-9 packaged and fiber-pigtailed laser diode (LD) directly encoded with an orthogonal frequency division multiplexed quadrature amplitude modulation (QAM-OFDM) data. A record data rate of up to 4.8 Gbit/s over 5.4-m transmission distance is achieved. By encoding the full 1.2-GHz bandwidth of the 450-nm LD with a 16-QAM-OFDM data, an error vector magnitude (EVM) of 16.5%, a signal-to-noise ratio (SNR) of 15.63 dB and a bit error rate (BER) of 2.6 × 10(-3), well pass the forward error correction (FEC) criterion, were obtained.
Type
journal article